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boilers

Indestructible Code Compliance Villains

By Energy Rant No Comments
In case you missed last week’s post, you’ll need to go back and review the setup for this week’s demonstration of code challenges and mistakes. To summarize, I have an installed ENERGY STAR-qualifying 95% AFUE (efficient) boiler with a brazed plate heat exchanger, hot water reset control, and a variable firing rate that ranges from 20% to 100%. That firing range is even better than code requirements. The system is a duded-out energy code breaker in theory. Let’s look at what went wrong in order. I have a Nest cam in the backyard and a Nest thermostat for the boiler.…
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Code Compliance Setup – A Boiler Project

By Energy Rant No Comments
Over the last forty years, computers have become orders of magnitude more powerful while they have become much easier to use. When I was in college, mainframe IBM computers owned all the muscle of computations. I was terrified of coding and wanted nothing to do with that. Thankfully, graphical interfaces emerged to make it easy. I even conquered graduate school with Engineering Equation Solver (“do it with EES” as its creator, Professor Sandy Klein, used to say). Energy codes went completely the opposite direction, from a simple document from the IBM mainframe era (1989) to a behemoth that would break…
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Bling not Required

By Energy Efficiency, Energy Rant No Comments
Rant fans are getting a break this week.  This post exemplifies a smashing success in energy efficiency and is a bit of a spinoff on capitalizing energy efficiency as I discussed in Facility Management, Taliban Style and Better than Doritos. The story begins with a board meeting for the Iowa Association for Energy Efficiency.  BTW, this is the least expensive, far and away, greatest-benefit-per-dollar-invested energy efficiency organization in the country. The board meeting was at an apartment complex, Sun Prairie, in West Des Moines or thereabouts.  As I pulled in with 134F heat at 9:30 AM, I was thinking, “Is…
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Need Not Miracles

By Energy Efficiency, Energy Rant, Renewable Energy, Sustainability No Comments
Thousands, make that millions of people, including some smart people and congress people, when talking solutions for our energy efficiency low-carbon future are continuously babbling about “technology” that will save us all.  Bill Gates says we need Miracles.  Whadahyou talking about man?  The White House announces $130 million for a new building energy efficiency effort - “a multi-agency initiative to spur regional economic growth while making buildings more energy efficient.”  It will be “an Energy Innovation Hub focused on developing new technologies to improve the design of energy-efficient building systems”.  Get ready for cold fusion to reemerge. Let me tell…
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